Gallery is an open source web based photo album organizer. Gallery gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal site or a large community site.
Serving millions worldwide, the Gallery project is the most widely used system of its kind.
Version : 3.0.9Release Date : 28-06-2013

Piwigo is a photo gallery software for the web, built by an active community of users and developers. Extensions make Piwigo easily customizable. Icing on the cake, Piwigo is free and opensource.
Version : 2.9.3Release Date : 26-02-2018

Coppermine is a multi-purpose fully-featured and integrated web picture gallery script written in PHP using GD or ImageMagick as image library with a MySQL backend.
CPG is so fully featured it's not enough to fully list them.Version : 1.5.46Release Date : 15-02-2017

Zenphoto is a CMS for selfhosted, gallery focused websites. Our focus lies on being easy to use and having all the features there when you need them. Zenphoto features support for various media formats and integrated blog and custom pages. Zenphoto is the ideal CMS for personal websites of illustrators, artists, designers, photographers, film makers and musicians.
Zenphoto features support for images, video and audio formats, and the Zenpage CMS plugin provides a fully integrated news section (blog) and custom pages to run entire websites. Version : 1.4.14Release Date : 28-01-2017

TinyWebGallery is a free php based photo album / gallery that is very easy to install, extremely user friendly, does not need a database (uses xml files) but still has all the features you should expect and much more!

TinyWebGallery can be configured very fast for a professional gallery like a model agency but also for the pictures from the last ski holiday! Just check out the demos and the list of all functions.Version : 2.4.5Release Date : 11-02-2018

phpAlbum is an Open Source PHP script which allows you to create your personal Photo Album / Gallery in just a seconds. All you need is a web space with FTP access. No database is needed. After a few clicks you are ready to upload your photos, create new directories /galleries, and use your photo album.Version : 0.4.1.16Release Date : 27-07-2011

4imagesis as a web based PHP and MySQL for displaying images on the Internet. 4images can be configured through an administration area. 4images supports apart from the typical image formats like JPG, GIF and PNG, other data formats. Furthermore 4images includes a template system to modify the design of the gallery. An external language file allows for easy translation into other languages. Version : 1.8Release Date : 16-11-2016

Pixelpost, a small photoblog application that's a no-brainer to set up and use. It's perfect for anyone wishing to regularly post their photos on the web like a blog. Version : 1.7.3Release Date : 02-09-2009

Plogger is the next generation in open-source photo gallery systems. A web application not bloated with superfluous features or complicated configuration settings.
Plogger is a simple yet powerful tool — everything you need to share your images with the world. Plogger is your photos integrated into your website, a fully featured photo sharing package with an attractive and easy to use administrative interface that makes managing your galleries a breeze. Version : 1.0Release Date : 28-10-2009

Lychee is the perfect place to store all your photos. No storage limit, no compression, no loss in data. We even support and display your EXIF and IPTC Metadata. And if you want, you can make your photos public for your audience. With just one click. Version : 3.1.6Release Date : 20-03-2017

Chevereto Free is an application which allows you to setup your own image sharing website and our goal is to allow anyone in the world to host their own image sharing platform. We believe in build a real alternative for those who want a customized white-label image sharing service. Version : 1.0.9Release Date : 10-11-2017

Gallery is an open source web based photo album organizer. Gallery gives you an intuitive way to blend photo management seamlessly into your own website whether you're running a small personal site or a large community site.
Serving millions worldwide, the Gallery project is the most widely used system of its kind. Version : 2.3.2Release Date : 03-04-2012